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A R 6 - ISOS FEBRUARY 2003 SURFACE WATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS WASHINGTON, WV Date: April 2003 Project No.: D6WW7423.01 18983632.00028 18983633.00026 18983634.00026 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 0003S3 NO CBI WVDEP 17572 Surface W ater Monitoring Report Table of Contents TABLE OF CONTENTS 1.0 Introduction...................................................................................................................1 2.0 C-8 Analytical Reporting............................................................................................. 2 3.0 Washington Works Facility.........................................................................................4 4.0 Local Landfill............................................................................................................... 5 5.0 Letart Landfill.............................................................................................................. 6 6.0 Dry Run Landfill.......................................................................................................... 7 7.0 References.................................................................................................................... 8 Table 1.0 Table 2.0 Table 3.0 Table 4.0 TABLES C-8 in Surface Water - Washington Works Facility C-8 in Surface Water - Local Landfill C-8 in Surface Water - Letart Landfill C-8 in Surface Water - Dry Run Landfill Figure 1.0 Figure 1.1 Figure 1.2 Figure 2.0 Figure 2.1 Figure 2.2 Figure 3.0 Figure 3.1A Figure 3.IB Figure 4.0 Figure 4.1 FIGURES Site Location Map - Washington Works Facility Surface Water Sample Location Map - Washington Works Facility C-8 Concentration Map February 2003 - Washington Works Facility Surface Water Site Location Map - Local Landfill Surface Water Sample Location Map - Local Landfill C-8 Concentration Map February 2003 - Local Landfill Outfalls Site Location Map - Letart Landfill Surface Water Sample Location Map - Letart Landfill Rt. 33 Stream and Brinker's Run Surface Water Sampling Locations Letart Landfill Site Location Map - Dry Run Surface Water Sample Location Map - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE i 0G03S4 Surface W ater Monitoring Report Table of Contents Figure 4.2 C-8 Concentration Map February 2003 - Dry Run Landfill Outclass Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F APPENDICES Laboratory Analytical Data Reports - Washington Works Facility Chain-of-Custody Records - Washington Works Facility Laboratory Analytical Data Reports - Local Landfill Chain-of-Custody Records - Local Landfill Laboratory Analytical Data Reports - Dry Run Landfill Chain-of-Custody Records - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE ii 000385 Surface W ater Monitoring Report Introduction 1.0 INTRODUCTION A multi-media consent order (Order No. GWR-2001-019) was entered into between the West Virginia Department of Environmental Protection (WVDEP), the West Virginia Department of Health and Human Resources - Bureau for Public Health (WVDHHRBPH) and DuPont on November 15, 2001 (Consent Order). The Consent Order identified a series of requirements and tasks to be performed by the parties to determine whether there has been an impact on human health and the environment as a result of releases of ammonium perfluorooctanoate (C-8), CAS Number 3825-26-1, to the environment from DuPont operations at the Washington Works facility and the associated landfills (Local, Letart and Dry Run). The Consent Order established the C-8 Groundwater Investigation Steering Team (GIST) to oversee investigations and activities that will be conducted to assess the presence and extent of C-8 in drinking water, groundwater, and surface water at and around the Washington Works facility and the Local, Letart and Dry Run Landfills. An additional component of the Consent Order relates to the West Virginia National Pollutant Discharge Elimination System (WV NPDES) permit sampling requirements. In this portion of the Consent Order, specific outfalls and outlets (outfalls) are to be sampled monthly for C-8 by DuPont. Pursuant to Attachment A of the Consent Order, three tasks were performed by DuPont and evaluated by the GIST, Tasks A, B, and C. Task A: Groundwater Use and Well Survey/Groundwater Monitoring was completed (DuPont, 2002a; 2002b). Task B: Assessment of Existing Groundwater and Surface Water Monitoring Data included compiling of historical C-8 data, monitoring all wells at the landfills and developing a Groundwater Monitoring Plan (GMP) for the Washington Works facility. The first part of the task, the historical C-8 data compilation report was submitted to the GIST for evaluation (DuPont, 2002c). The second part of this task, monitoring C-8 in groundwater at the landfills, began in December 2001, and was performed monthly for four months and quarterly thereafter. The third part of the task, developing a GMP for the Washington Works facility, was submitted to the GIST (DuPont, 2002d). Groundwater sampling at the Washington Works facility began in January 2002, and was conducted monthly for four months and quarterly thereafter. Task C: Plume Identification/Groundwater Assessment was also completed (DuPont 2003). This report presents the results of the monthly C-8 surface water sampling that was performed in February 2003 at the Washington Works facility, and the Local, and Dry Run Landfills. Monthly C-8 surface water sampling at the Letart Landfill was not conducted in February 2003 because an ice storm downed trees, blocking the access road to the landfill. FEB SW MR.doc Apr. 15, 03 Wilmington, DE 000386 1 Surface W ater Monitoring Report C-8 Analytical Reporting 2.0 C-8 ANALYTICAL REPORTING The analytical method, method detection limit, and laboratory utilized for C-8 analysis have changed over time. Prior to 1991, DuPont performed C-8 analysis at the DuPont Experimental Station in Wilmington, Delaware. In 1991, when the RCRA Verification Investigation was conducted, the analysis was contracted to the CFLMHill Laboratory in Montgomery, Alabama. Both labs used a Gas Chromatography/Electron Capture Detector (GC-ECD) based analytical method with detection limits for C-8 that ranged from 0.1 to 1.0 ug/1. CILMHill conducted C-8 analysis for DuPont into the fall of 1998 when the laboratory ceased operation. The C-8 analytical work was transferred to Lancaster Laboratories, Lancaster, PA, in March 1999. Lancaster Laboratories continued to conduct C-8 analysis using GC-ECD for DuPont until October 2001, when development and testing was completed on a new analytical method developed by Exygen Research, Inc. (Exygen; located in State College, PA) that utilizes Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS). DuPont adopted the regular use of LC/MS/MS for C-8 analysis in water in November 2001 and Exygen was contracted to perform the analyses for DuPont. Exygen reports C-8 results for the laboratory replicate of each field sample. These results are evaluated for precision by comparing the field sample result to the corresponding laboratory replicate result. If both results are less than the practical quantitation limit (PQL), the replicate sample for that analyte is considered to have passed the precision criteria. If one or both results are between one and five times the PQL, the replicate is considered to have met the precision criteria if the two results differ by less than the PQL. If one result is less than the PQL and the other is not, and if the two results differed by a value less than the PQL, the replicate is said to have met the acceptance criteria. If both results are at least five times the PQL, the replicate is considered to have met the criteria if the relative percent difference (RPD) between the two results is less than or equal to 20%. The RPD is the absolute value of the difference of two measurements divided by their average. When the precision criteria outlined above are met, Exygen reports the average of the field sample and lab replicate results reported by the laboratory. If criteria for precision are exceeded, Exygen reports the higher of the sample and lab replicate results. Finally, when one result (from the sample/lab replicate pair) is above the PQL and one below, the result that is above the PQLs is reported. C-8 results are recorded in the Corporate Environmental Database (CED) and are reported as FC-143 for consistency with historical results. i An aliquot of each field sample is also analyzed as a matrix spike (MS). Results of the MS analysis are used to assess accuracy. The MS recovery value must fall between 70 to FEB SW MR.doc Apr. 15, 03 Wilmington, DE 000387 2 Surface W ater Monitoring Report C-8 Analytical Reporting 130%, unless the sample concentration is at least four times the amount spiked. The maximum amount used to spike field samples is 500 ug/L. All data packages generated by Exygen are reviewed in-house for compliance with the laboratory Standard Operating Procedures (SOP) and data usability, using the checklist provided in the QAPP. Results of the in-house review indicate that data reported by Exygen have been generated in compliance with the laboratory SOP, with few exceptions as noted in the individual review summaries. All data reported by Exygen have been judged usable for the purposes of the project. FEB SW M R.doc Apr. 15, 03 Wilmington, DE 000358 3 Surface W ater Monitoring Report Washington Works Facility 3.0 WASHINGTON WORKS FACILITY Figure 1.0 shows the location of the Washington Works facility. On February 27, 2003, six outfalls were sampled for C-8 (001, 002, 003, 005, 007, and 105). All of these outfalls collect process water and stormwater runoff. No changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event. Monthly sampling of these outfalls is required by the Consent Order and WV NPDES permit No. WV0001279. The locations of these outfalls are shown in Figure 1.1. Table 1.0 provides the C-8 analytical results for surface water. For each sampling point listed in the table, historical data is summarized with the most recent results listed first. Figure 1.2 presents the C-8 concentration map for the outfalls sampled in February. Laboratory analytical data reports and the Chain-of-Custody records are included in Appendix A and B, respectively. FEB SW MR.doc Apr. 15, 03 Wilmington, DE 00033 4 Surface W ater Monitoring Report Local Landfill 4.0 LOCAL LANDFILL Figure 2.0 shows the location of the Local Landfill. Monthly sampling of five outfalls is required by the Consent Order and the WV NPDES permit No. WV0076538. These five outfalls collect stormwater runoff. Outfall 101 was sampled for C-8 on February 26, 2003. During the month of February, outfalls 004(Old), 004(New), 005(Old)/SSl, and 005(New) were not sampled due to no-flow conditions. No changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event. The locations of these five outfalls are shown in Figure 2.1. Table 2.0 presents the C-8 analytical results for the February surface water sample. The table includes the historic data available for each location sampled. The data are presented with the most recent data first. Figure 2.2 presents the C-8 concentration map for the outfalls sampled in February. Laboratory analytical data reports and Chain-ofCustody records are provided in Appendices C and D, respectively. FEB SW MR.doc Apr. 15, 03 Wilmington, DE 000330 5 Surface W ater Monitoring Report Letart Landfill 5.0 LETART LANDFILL Figure 3.0 presents the Letart Landfill location map. Monthly sampling of Outfalls 002 and 003 (both containing stormwater runoff) and Cap Runoff (which collects leachate and stormwater runoff) is required by the Consent Order. On February 28, 2003 an attempt to sample was made. However an ice storm downed trees that blocked the access road to the landfill. Therefore samples were not collected at any locations at the Letart Landfill. The location of Outfall 002, Outfall 003, and the Cap Runoff samples are shown in Figure 3.1A. In Table 3.0 historical data is summarized with the most recent results listed first for each sampling point listed in the table. The location of the Brinker's Run and the Rt. 33 Stream surface water sampling points are shown in Figure 3.IB for reference. FEB SWMR.doc Apr. 15, 03 Wilmington, DE 6 000391 Surface W ater Monitoring Report Dry Run Landfill 6.0 DRY RUN LANDFILL Figure 4.0 shows the location of the Dry Run Landfill. Monthly sampling of Outfalls 001, 003, and 004 is required by the Consent Order and WV NPDES permit No. WV0076244. (Outfall 002 is a required outfall sampling location as stated in WV NPDES permit No. WV0076244. However, it was a temporary relocation of Outfall 001 and no longer exists). Outfall 001 collects stormwater and leachate. Outfalls 003 and 004 collect stormwater only. On February 26, 2003, Outfall 001 was sampled. During the month of February, Outfalls 003 and 004 were not sampled due to no-flow conditions. No changes to routine sampling protocols or other observations were recorded in the field notes during this sampling event. The locations of the surface water sampling points are shown in Figure 4.1. Table 4.0 presents the C-8 analytical results for the February surface water samples. For each sampling point listed in the table, historical data are summarized with the most recent results presented first. Figure 4.2 presents the C-8 concentration map for the outfall sampled in February. Laboratory analytical data reports and Chain-of-Custody records are provided in Appendices E and F, respectively. FEB SW MR.doc Apr. 15, 03 Wilmington, DE 7 000392 Surface W ater Monitoring Report References 7.0 REFERENCES DuPont. 2002a. One-Mile Radius Survey and C-8 Sampling Report and Ohio River Public Water Supply Sampling, DuPont Washington Works (December 2001February 2002) January 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont. 2002b. Two-Mile Radius Survey and C-8 Sampling, DuPont Washington Works Facility/Local Landfill, West Virginia (March-May 2002) August 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont. 2002c. Compilation o f Historical C-8 Data, DuPont Washington Works Main Plant and Landfills January 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont. 2002d. Proposed Groundwater Monitoring Plan for Washington Works Facility Plant and Landfills January 2002. DuPont Corporate Remediation Group and URS Diamond. DuPont. 2003. C-8 Data Summary Report, Consent Order GWR-2001-019, DuPont Washington Works Facility, and Local, Letart, and Dry Run Landfills January 2003. DuPont Corporate Remediation Group and URS Diamond. FEB SW MR.doc Apr. 15, 03 Wilmington, DE 000393 8 J TABLES J 000394 TABLES 0 0 3 9 5 04/15/03 Table 1.0 Summary of Analytical Results: C-8 in Surface Water DuPont Washington Works Facility Washington, WV Sample OUTLET 001 OUTFALL 002 OUTLET 003 Date 2/27/03 1/26/03 12/9/02 11/13/02 10/18/02 9/24/02 8/27/02 7/23/02 6/25/02 5/20/02 4/16/02 3/19/02 2/5/02 1/17/02 12/20/01 2/27/03 1/26/03 12/9/02 11/13/02 11/13/02 (dup) 10/18/02 9/24/02 8/27/02 8/27/02 (dup) 7/23/02 6/25/02 6/25/02 (dup) 5/20/02 4/16/02 3/19/02 2/5/02 1/17/02 12/ 20/01 11/26/0 r 10/25/01 9/19/01 7/11/01 6/14/01 5/31/01 4/11/01 3/21/01 2/14/01 2/27/03 1/26/03 1/26/03 (dup) 12/9/02 11/13/02 10/18/02 9/24/02 8/27/02 7/23/02 6/25/02 5/20/02 4/16/02 3/19/02 3/19/02 (dup) 2/5/02 1/17/02 1/17/02 (dup) 12/ 20/01 18.9 3.58 9.76 17.0 10.5 2.15 2.94 8.63 17.9 22.4 19.7 21.4 9.43 10.9 3.720 4.15 5.46 2.37 4.75 5.28 3.49 2.14 2.56 2.51 2.29 3.86 3.81 4.13 2.45 5.85 4.66 4.23 1.980 4.84 2.8 0.118 0.558 0.594 0.436 1.5 8.54 1.74 1.06 0.750 0.842 0.680 1.24 0.870 0.317 0.268 0.291 0.175 0.503 2.76 2.91 2.81 1.33 0.956 3.99 0.713 1 of 3 000396 Table 1 0.doc Table 1.0 Summary of Analytical Results: C-8 in Surface Water DuPont Washington Works Facility Washington, WV I Sample OUTFALL 005 OUTLET 007 Date 2/27/03 2/27/03 (dup) 1/26/03 12/9/02 12/9/02 (dup) 11/13/02 10/18/02 9/24/02 9/24/02 (dup) 8/27/02 7/23/02 6/25/02 5/20/02 5/17/02 4/16/02 3/19/02 2/5/02 1/17/02 12/20/01 12/20/01(dup) 11/26/01 10/25/01 9/19/01 8/30/01 7/11/01 6/14/01 5/31/01 4/11/01 3/21/01 2/14/01 2/27/03 1/26/03 12/9/02 11/13/02 10/18/02 10/18/02 (dup) 9/24/02 8/27/02 7/23/02 7/23/02 (dup) 6/25/02 5/20/02 4/16/02 3/19/02 2/5/02 2/5/02(dup) 1/17/02 12/20/01 C-8 (ug/l) 46.4 46.2 33.4 6.39 6.62 18.1 12.1 4.64 5.02 12.4 19.2 17.9 98.6 65.7 3.8 9.26 141.0 137.0 31.40 35.20 915 65.7 2.86 2.16 120 7.4 1.43 4.31 199 153 1.1 5.77 0.263 8.56 0.251 0.209 NQ (<0.05) 0.207 0.597 0.544 0.284 0.490 0.567 0.483 0.320 0.339 0.871 1.99 04/15/03 2 of 3 000337 Table 1 O.doc Table 1.0 Summary of Analytical Results: C-8 in Surface Water DuPont Washington Works Facility Washington, WV Sample Date C-8 (ug/l) I OUTLET 105 2/27/03 1/26/03 12/9/02 11/13/02 10/18/02 9/24/02 8/27/02 7/23/02 6/25/02 5/20/02 5/20/02 (dup) 4/16/02 3/19/02 2/5/02 1/17/02 12/20/01 17.0 16.9 6.07 10.5 54.6 3.69 6.73 34.7 3.86 6.27 5.16 15.9 13.2 14.6 7.53 9.78 Note: Analytical method changed as of November 2001 (see Section 2.0 for details). NQ = Not Quantifiable. Detected at a concentration above the LOD and below the limit of quantification (LOQ). 04/15/03 3 of 3 000398 Table 1 O.doc Table 2.0 Summary of Analytical Results: C-8 in Surface Water Local Landfill Washington, WV Sample OUTFALL 004 (New) OUTFALL 004 (Old) OUTFALL 005 (New) Date 2/28/03 1/31/03 12/13/02 11/30/02 10/31/02 9/30/02 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 3/26/02 2/28/03 1/31/03 12/13/02 11/30/02 10/31/02 9/30/02 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 3/26/02 2/20/02 1/24/02 12/13/01 9/27/2000 12/10/1999 6/3/1999 6/2/1998 5/29/1997 4/2/1996 2/16/1994 2/28/03 1/31/03 12/13/02 11/30/02 10/31/02 9/30/02 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 3/26/02 C-8 (ug/l) No-flow conditions No-flow conditions 10.7 No-flow conditions No-flow conditions No-flow conditions No-flow conditions 11.2 9.29 No-flow conditions 14.5 14.6 No-flow conditions No-flow conditions 12.5 No-flow conditions No-flow conditions No-flow conditions No-flow conditions 11.6 10.0 No-flow conditions 15 1.54 10.9 11.4 No-flow conditions 4.73 7.1 3.06 12 13 13 11 No-flow conditions No-flow conditions 9.51 No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions 34.3 16.0 I 04/15/03 1 of 2 000339 Table 2 0.doc Table 2.0 Summary of Analytical Results: C-8 in Surface Water Local Landfill Washington, WV Sample OUTFALL 005 (Old)/SS1 OUTLET 101 OUTLET LM1 (LEACHATE) / INLET 002 Date 2/28/03 1/31/03 12/13/02 11/30/02 10/31/02 9/30/02 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 3/26/02 2/20/02 1/11/02 12/13/01 9/27/2000 12/10/1999 6/3/1999 6/2/1998 5/29/1997 4/2/1996 2/16/1994 2/26/03 1/29/03 12/16/02 11/19/02 10/31/02 9/30/02 8/26/02 7/1/02 6/13/02 5/21/02 4/29/02 3/25/02 2/20/02 1/23/02 12/13/01 9/14/2000 6/3/1999 6/2/1998 12/16/02 11/21/02 C-8 (ug/1) No-flow conditions No-flow conditions 38.1 No-flow conditions No-flow conditions No-flow conditions No-flow conditions 32.1 27.3 No-flow conditions 40.9 39.0 46.0 51.4 No-flow conditions 13.3 34 6.8 39 41 39 35 43.9 72.3 49.5 76.7 78.6 115.0 70.3 63.0 38.0 40.0 48.2 36.4 63.10 81.4 82.40 12 15 54 81.7 120.0 Note: Analytical method changed as o f November 2001 (see Section 2.0 for details). 04/15/03 2 of 2 000400 Table 2 O.doc Table 3.0 Summary of Analytical Results: C-8 in Surface Water Letart Landfill Letart, WV Sample 002(LEACHATE BASIN) 003 RT 33 STREAM BRINKER RUN Date 2/28/03 1/24/03 12/30/02 11/25/02 10/31/02 9/27/02 8/30/02 7/30/02 6/28/02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 12/14/01 11/27/2001 7/20/01 7/25/2000 4/3/2000 1/14/2000 10/21/1999 2/28/03 1/31/03 12/30/02 11/30/02 10/31/02 9/27/02 8/30/02 7/30/02 6/28/02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 12/14/01 10/31/02 9/27/02 8/30/02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 7/20/2001 7/31/2000 7/20/1999 7/23/1997 4/17/1996 10/14/02 C-8 (ue/l) Not Sampled** Frozen 1170 939 645 4.52 2050 1410 Not Analyzed* 1630 443 131 355 50.1 36.1 53.2 159 1350 1900 920 3240 Not Sampled** No-Flow Conditions No-Flow Conditions No-Flow Conditions No-Flow Conditions 0.170 No-Flow Conditions No-Flow Conditions Not Analyzed* 0.282 0.0653 0.198 No-Flow Conditions 0.148 0.390 23 2.24 No-Flow Conditions 1.570 0.845 1.26 3.92 1.9 2.01 0.573 2.23 2 1.8 0.0612 04/15/03 1 of 2 000401 Table 3 O.doc Table 3.0 Summary of Analytical Results: C-8 in Surface Water Letart Landfill Letart, WV Sample CAP RUNOFF Date 1/24/03 12/30/02 11/25/02 10/31/02 9/27/02 8/30/02 6/28/02 5/30/02 4/30/02 3/28/02 2/19/02 1/25/02 C-8 (ub/I) Frozen 415 65.1 102 50.9 No-Flow Conditions Not Analyzed* 371 279 Not Sampled No-Flow Conditions 119 Note: Analytical method changed as o f November 2001 (see Section 2.0 for details). * Samples were taken at the respective surface water locations. However, due to an error by the courier, the samples arrived at the lab warm and were not analyzed. ** These surface water locations were not sampled due to downed trees from an ice storm that prohibited access to the landfill. 04/15/03 2 of 2 000402 Table 3 O.doc Table 4.0 Summary of Analytical Results: C-8 in Surface Water Dry Run Landfill Lubeck, WV I Sample OUTLET 001 OUTLET 003 OUTLET 004 Date 2/26/03 1/29/03 12/30/02 11/21/02 10/30/02 9/30/02 8/30/02 7/31/02 7/1/02 6/28/02 5/28/02 4/24/02 3/25/02 2/25/02 1/28/02 12/12/01 10/3/2000 12/29/1999 5/19/1998 4/9/1996 2/28/03 1/31/03 12/30/02 11/30/02 10/30/02 9/30/02 8/30/02 7/1/02 6/28/02 5/28/02 4/29/02 3/26/02 2/25/02 1/28/02 12/12/01 2/28/03 1/31/03 12/30/02 11/30/02 10/30/02 9/30/02 8/30/02 7/1/02 6/28/02 5/28/02 4/27/02 3/26/02 2/25/02 1/28/02 12/12/01 C-8 (ug/1) 69.0 88.4 56.9 64.6 81.7 No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions 30.9 41 71.6 43.9 41.6 No-flow conditions 31.5 66 17 86 No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions 25.3 No-flow conditions No-flow conditions 20.1 6.77 No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions No-flow conditions 0.70 No-flow conditions No-flow conditions No-flow conditions 158 No-flow conditions No-flow conditions No-flow conditions 04/15/03 1 of 2 000403 Table 4 0.doc Table 4.0 Summary of Analytical Results: C-8 in Surface Water Dry Run Landfill Lubeck, WV Sample Date C-8 (ug/l) PROPERTY BOUNDARY 10/30/02 8/30/02 5/28/02 4/24/02 3/25/02 3.80 No-flow conditions 941 6.69 22.8 2/25/02 1/28/02 12/12/01 10/3/2000 12/29/1999 7/14/1998 4/9/1996 3.81 11.1 3.99 10.3 39 0.88 9.9 STREAM SAMPLING POINT#1 10/30/02 8/30/02 5/28/02 4/24/02 3/25/02 2/25/02 1/28/02 12/12/01 10/3/2000 12/29/1999 5/19/1998 1.63 No-flow conditions 1.63 0.932 1.06 0.850 0.893 1.19 0.758 0.54 1 STREAM SAMPLING POINT#2 10/30/02 8/20/02 29.2 No-flow conditions 5/28/02 4/24/02 3/25/02 51.0 28.9 66.6 2/25/02 1/28/02 12/12/01 10/3/2000 12/29/1999 5/19/1998 24.3 42.4 20.5 27.6 87 4.6 DRLEACHATE 10/30/02 5/28/02 4/24/02 3/25/02 2/25/02 1/28/02 12/12/01 10/3/2000 12/29/1999 5/19/1998 7/22/1997 704 150 237 334 256 398 109 27.4 34 56 62 POND UNDERDRAIN 10/30/02 5/28/02 4/24/02 3/25/02 2/25/02 1/28/02 12/12/01 38.8 67.4 33.4 66.7 37.1 29.3 35.4 Note: Analytical method changed as o f November 2001 (see Section 2.0 for details). 04/ 15/03 2 of 2 000**04 Table 4 0.doc FIGURES FIGURES 000406 LEGEND outlets = OUTFALL SAMPLING POINT SCALE 700 0 700' GCSBNCD K. DAMS Wl D-H. ENGLISH OCCMEO AKm. DAMS) MIMA MVKKDtCONRWencM) <smt> 4^ Corporate Remediation Group An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 SURFACE WATER SAMPLE LOCATION MAP DuPont Washington Works Facility Washington, West Virginia ss Pm A n I[ i s00-/0-2-/2-0-0-2r a n s rs R O -l.t I[m s 1.1 LEGEND OUTLET 005 OUTFALL SAMPLING POINT SCALE 700 700' Corporate Remediation Group 4n {iancc betw een DuPont and URS Diamond Borley Mitt PI020. Building 27 Wilmington, Detowore 19805 C -- 8 IN SURFACE WATER FEBRUARY 2003 DuPont Washington Works Facility Washington, West Virginia H / M / m M'42VWD044 LEGEND SURFACE WATER SAMPLE SCALE 400 400' 800' 0EMND OHM KL OCEKD TDL rPHMMI<WW0 arm Corporata Ramadatkxi Group A n iW n i M w m JW tttU on d URS D iam ond Boriey MU Plaza, Building 27 ________ WBmfrigton, Dalowor 19805________ SURFACE WATER SAMPLE LOCATION MAP Local Landfill Washington, West Virginia juniuL-- fsss~ tI I 2 000412 SCALE 2000 2000' 000413 SDURCE NEV HAVEN, W -0 H I0 QUADRANGLE 7.5' SERIES SITE LOCATION MAP Corporate Remediation Group An A lliance between DuPont a n d The W-C D iam ond Group Barley Mill Plaza. Building 27 Wilmington. Delaware 1 9 8 8 0 -0 0 2 7 L etart Landfill Site L e ta rt, WV CMC A * shown DATE 0 1 /3 1 /2 0 0 3 " " " tol CHECKED MMM OHE WfeCWED fiW U N B . 7 2 5 0 *0 0 3 noupc 3.0 000414 LEGEND: ^ SURFACE WATER SAMPLE LOCATION SCALE 650 0 650' SO U R CE M AP TAKEN PROM THE USOS NEW H A V E R WV 7J f SE R E S OUAORANOIE 000415 Corporate Remediation Group A n Alliance betw een DuPont and URS D iam ond B a rley Mill P la z a , B uilding 2 7 W ilm ington, D elaw are 1 9 8 0 5 RT. 33 STREAM AND BRINKER'S RUN SURFACE WATER SAMPUNG LOCATIONS L etart Landfill Site Letart, West Virginia NAIehewn CONNO DOE11/28/02 (MOB OEL ON74i2mM010 TDL "" n s S o urce MAP TAKEN FROM THE LBECK. Wv USGS QUADRANGLE 1200 SCALE 1200' 2400' SCSMNED K.DAVIS fiMM DEL OCEKD HfPWMB(POKM) MTMLS < p> C orporate Remediation Group An Alliance between DuPont and URS Diamond MWwXcoMsnucnoN) Boriey Mill Ploza. Building 27 Wilmington, Deioware 19805 SITE LOCATION MAP ni to D ry R un L an d fill L u b e c k , W est V irg in ia |mc l a e w n im m tl/l/O t 74231000 4.0 000416 000417 APPENDICES 000419 M rrc m jiA 0004 o APPENDIX A LABORATORY ANALYTICAL DATA REPORTS WASHINGTON WORKS FACILITY 000421 RESEARCH Precise Research. Proven Results. Analytical Resujts Washington Works C8 Sampling 2/03 DuPont Sample Identification APFO (ng/L) WWK-Z-Outfall-001 WWK-Z-Outfall-002 WWK-Z-Outfall-003 WWK-Z-Outfall-005 WWK-Z-Outfall-007 WWK-Z-Outfall-105 WWK-Z-Outfall-005-2 WWK-K-EQBLK-1 18900 4150 1060 46400 1100 17000 46200 ND Limit of Detection (LOD) for the procedure is appoximately 10 ng/L Limit of Quantitation (LOQ) for the procedure is 50 ng/L ND - Compound not detected NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 250 ng/L, and the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD is greater than 20, the higher value is reported. If the sample and laboratory duplicate are less tha 250 ng/L, and the absolute difference is less than 50, the average value is reported. If the absolute difference is greater than 50, the higher value is reported. 0007 00422 exygen.com APPENDIX B APPENDIX B CHAIN-OF-CUSTODY RECORDS WASHINGTON WORKS FACILITY 000424 PROJECT INFORMATION Client (name & address): CHAIN OF CUSTODY/ANALYSIS REQUEST FO RM Exygen Research Sample Receiving * 3 1 1 7 Research Drive State College, PA 168 0 1 , USA T: 8 1 4 .2 3 1 .8 0 3 2 F: 8 1 4 .2 3 1 .1 5 8 0 exygenresearch.com Page____ o f ______ ANALYSES REQUESTED Project Manager (Name & E-mail Address): S Z fc a a Number of Containers DOG V^>v\ v Phone: Fax: _ V v i- Sampler: X S ^ W tr.Ilq D W 'N 'k y --) Project Name: C L-X RO. # : Quotation # : 1 '1 Tr\ 5 Please fill out this form c o m p l e t e l y t o ensure correct analysis and proper handling of your samples. 41 SAM PLE ANALYSISExyUMS# Client Sample Identification Collection Collection Date Time .Ofd o *5Oa5. E uo c Y7-7 VO vuYri - Q N l ^ W Oo YAO Specify Matrix Q Comments WW s-Whs c. U1U^'-ZL- O O -27-03 \iVMS LuMfl Stlo - UH&3S=i c J h i V7-7 c JY W ' i UdMVXZ.- L ) H l V 7 - r vaio*:- z.-ftVV'&p.W- n o n \U O O2 - 2 T H 3 l'T T 3.-X7-C m s X * 2 Ii MSSlxSl - X s ^ Q S S b^anu- M&rU- UMn c jH i- n - k CsUAftW- \C\S 2 - X ) < \M M 0 2. loMfVXVA- V iU K ^ O L S < / t 77-7 c J ct * n - 8 LAB USE ONLY si-axs VMM 5k D- ItM S V W - laM 'N Sm c< rt t 1 o -B \y ^-- i *-v* \. V lH SA f.f V to to n 1 7 * 7x 7-1 7-7 7-y t r H CHAIN OF CUSTODY /Relinquished by \ Date Time \QCX*> ' > OTHER INFORMATION Cooler ID # f / Cooler Temp. (C) & Received by v Date Time oL" olLr? C f \ C /Q /, T4**----------------------------------------.---- ------ -- crrtf/er*A* *?l //e o LAB USE ONLY PROJECT REQUIREMENTS Results Deadline: Laboratory Report Options: CD Sample results only I I Add case narrative CD Add quality control summary CD Add calibration summary CD Add raw data CD Other________ APPENDIX C 000426 APPENDIX C LABORATORY ANALYTICAL DATA REPORTS LOCAL LANDFILL ^ 0 0 4 2 *? ri Proven Results. Analytical Results Local Landfill C8 Sampling 2/03 DuPont Sample Identification APFO (ng/L) LCL-Z-Outlet 101 43900 Limit of Detection (LOD) for the procedure is appoximately 10 ng/L Limit of Quantitation (LOQ) for the procedure is 50 ng/L ND - Compound not detected NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 250 ng/L, and the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD is greater than 20, the higher value is reported. If the sample and laboratory duplicate are less tha 250 ng/L, and the absolute difference is less than 50, the average value is reported. If the absolute difference is greater than 50, the higher value is reported. 000428 F: 814.231.1580 sxygen.com APPENDIX D 0 0 4 2 9 APPENDIX D CHAIN-OF-CUSTODY RECORDS LOCAL LANDFILL 000430 CHAIN OF CUSTODY/ANALYSIS REQUEST FO R M RESEARCH Exygen Research Sample Receiving ' 3 1 1 7 Research Drive State College, PA 168 0 1 , USA T: 8 1 4 .2 3 1 .8 0 3 2 F: 8 1 4 .2 3 1 .1 5 8 0 ` exygenresearch.com P a g e ______o f ______ PROJECT INFORMATION ANALYSES REQUESTED Client (name & address): ACMfo Af3'-<'r w . .0, .. f /5/ 'I f ft / a,i t . /,7iC t</ /V/ l\.. Of n /t'T ' Phone: ` z r/ /t r/s Fax: . Sampler: - Project Manager (Name & E-mail Address): /T lJc, U ( . , i'L\ e-{ i f) -//<-/., d*- / c I f l , - Project Name: / > 5* u As RO. # : ' Quotation # : Please fill out this form completely to ensure correct analysis and proper handling of your samples. Crab C om po s ite Number of Containers " ;' v...i\;//?I.!1!! T, ; t- ft'*, t f-A,.2jj 1 . kg .* ExyLIAAS# Client Sample Identification 3 `(L 22 - I - *"L- " i `- ' / At 1c i Collection Collection Date Tim e l-.T V lr \ V -P , Specify M a trix Comments (`"AH ; //US / .N5* *A NJ m -* nL ,t Nv V. .'I's. / Vv) ...V '*"r "h, r t'i ____ 1j I usF our. o Relinquished by v w ^ M v A c r t i t , [\ S* S, \) w < tri li ti I H M HihA/VlI' H ! Date Time 3.- - U r tB \'A C.:( . * Cooler ID # fjCooc Received by As & /( f i All use oni.v Cooler Temp. (C) (l ,7 Date Time )^i9\\tc(B // ---1-f(r f i fa PROJECT REQUIREMENTS Results Deadline: Laboratory Report Options: 0 Sample results only C ] Add case narrative 1 I Add quality control summary I I Add calibration summary I I Add raw data Other________________ APPENDIX E APPENDIX E LABORATORY ANALYTICAL DATA REPORTS DRY RUN LANDFILL 000433 Precise Research. Proven Results. Analytical Results Dry Run Landfill C8 Sampling 2/03 DuPont Sample Identification APFO (ng/L) DRL-Z-Outlet 001 69000 Limit of Detection (LOD) for the procedure is appoximately 10 ng/L Limit of Quantitation (LOQ) for the procedure is 50 ng/L ND - Compound not detected NQ - Compound detected at a level between the LOD and LOQ. Result is not quantifiable. ND < LOD < NQ < LOQ Results are calculated according to the following criteria If the sample and laboratory duplicate are greater than 250 ng/L, and the relative percent difference (RPD) is less than 20, the average value is reported. If the RPD is greater than 20, the higher value is reported. If the sample and laboratory duplicate are less tha 250 ng/L, and the absolute difference is less than 50, the average value is reported. If the absolute difference is greater than 50, the higher value is reported. 000434 F: 814.231.1580 exygen.com APPENDIX F 000435 APPENDIX F CHAIN-OF-CUSTODY RECORDS DRY RUN LANDFILL 000436 CHAIN OF CUSTODY/ANALYSIS REQUEST FO R M RESEARCH Exygen Research Sample Receiving * 3 1 1 7 Research Drive State College, PA 16 8 0 1 , USA T: 8 1 4 .2 3 1 .8 0 3 2 F: 8 1 4 .2 3 1 .1 5 8 0 exygenresearch.com P a g e _____ o f ______ PROJECT INFORMATION ANALYSES REQUESTED Client (name & address): Project Manager (Name & E-mail Address): -------- X r ________________ / r l j c < A v t o t ' i ________________ 2 if'J? 27 L ^ c . f t 7 M l ' ____ ( P e / ? * o r ______________________ Project Name: Aycotsi /. phon e:______ ~ Fax: .A-? RO. # : Sampler: .X\<KsvrrN. Quotation#: Please fill out this form completely to ensure correct analysis and proper handling of your samples. * C om po site Number of Containers ' A . t 1 A &<, S ft B / r- ExyLIMS# Client Sample Identification P e L - ~ O v t U t 30 1 Collection Collection Date Tim e -ofwQli -au-Gi p a n X Specify M a trix Comments --sH--S--v-ti!-f--G---^--S--S--o--S------------- X \ 1 u k X . s uV T" . '''v't. ;f/ t 't ! "b ii'.i u n i. ' V * f 1 \ 5j \ 'X 1 C ooler ID # - - C o o le r T em p . (C) (J .`i-1 PROJECT REQUIREMENTS Results Deadline: Laboratory Report Options: I I Sample results only I I Add case narrative 0 Add quality control summary 1 I Add calibration summary I I Add raw data I I Other__________